| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 40.11 | 173 |
| 2015 | 39.49 | 176 |
| 2014 | 38.65 | 177 |
| 2013 | 38.46 | 177 |
| 2012 | 38.32 | 175 |
| 2011 | 38.14 | 178 |
| 2010 | 38.02 | 179 |
| 2009 | 40.84 | 171 |
| 2008 | 43.57 | 165 |
| 2007 | 45.45 | 161 |
| 2006 | 47.29 | 150 |
| 2005 | 49.1 | 137 |
| 2004 | 49.33 | 139 |
| 2003 | 49.42 | 138 |
| 2002 | 49.59 | 140 |
| 2001 | 49.68 | 137 |
| 2000 | 49.82 | 138 |
| 1999 | 49.93 | 139 |
| 1998 | 50.06 | 140 |
| 1997 | 48.42 | 146 |
| 1996 | 50.42 | 136 |
| 1995 | 49.79 | 138 |
| 1994 | 50.84 | 134 |
| 1993 | 51.04 | 133 |
| 1992 | 50.31 | 136 |
| 1991 | 48.81 | 147 |